Suzy T (6/8/2016)
"This scenario has a limitation worth pointing out. It suitable for schema changes only, with no regard for data and, more importantly, constraints over the data."Unless these points are addressed then we haven't really solved anything.
I don't know that's true. Plenty of people can manage data separately and don't worry about moving it between environments. I've had a number of applications that didn't every do this.
Data and schema are separate, and while it's nice to be able to build and test both, getting at least one done is a good first step.